CLC TR 50454-2008 Guide for the application of aluminium electrolytic capacitors《铝电解电容器的应用指南》.pdf
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1、PUBLISHED DOCUMENTPD CLC/TR 50454:2008Guide for the application of aluminium electrolytic capacitors ICS 31.060.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43
2、g55g3g47g36g58PD CLC/TR 50454:2008This Published Document was published under the authority of the Standards Policy and Strategy Committee on 29 August 2008 BSI 2008ISBN 978 0 580 60868 1National forewordThis Published Document is the UK implementation of CLC/TR 50454:2008.The UK participation in it
3、s preparation was entrusted to Technical Committee EPL/40X, Capacitors and resistors for electronic equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Use
4、rs are responsible for its correct application.Amendments/corrigenda issued since publicationDate CommentsTECHNICAL REPORT CLC/TR 50454 RAPPORT TECHNIQUE TECHNISCHER BERICHT April 2008 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Eur
5、opisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. CLC/TR 50454:2008 E ICS 31.060.50 Supersedes R040-001:1998English version G
6、uide for the application of aluminium electrolytic capacitors Guide pour lutilisation de condensateurs lectrolytiques laluminium Leitfaden fr die Anwendung von Aluminium-Elektrolyt-Kondensatoren This Technical Report was approved by CENELEC on 2008-02-08. CENELEC members are the national electrotech
7、nical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland a
8、nd the United Kingdom. Foreword This Technical Report was prepared by the Technical Committee CENELEC TC 40XA, Capacitors. The text of the draft was submitted to the vote in accordance with the Internal Regulations, Part 2, Subclause 11.4.3.3 (simple majority) and was approved by CENELEC as CLC/TR 5
9、0454 on 2008-02-08. This Technical Report supersedes R040-001:1998. _ CLC/TR 50454:2008 2 Contents 1 Scope and object 5 1.1 Scope . 5 1.2 Object . 5 2 Normative references . 5 3 Terms and definitions 6 4 Protection measures 7 4.1 Handling and transport 7 4.2 Insulation 7 5 General application limits
10、 7 5.1 Polarity - Reverse voltage 7 5.2 Voltage . 7 5.3 Temperature range 8 5.4 Ripple current. 8 5.5 Charge - Discharge 8 6 Storage 8 7 External pressure . 9 7.1 Low air pressure 9 7.2 High air pressure . 9 8 Self-recharge phenomenon (dielectric absorption) 9 9 Flammability (passive and active) . 9
11、 9.1 Passive flammability 9 9.2 Active flammability . 9 10 Internal pressure and pressure relief device .10 11 Working electrolytes and contact with an electrolyte .10 12 Parallel and series connection .11 12.1 Parallel and series connection of capacitors . 11 12.2 Balancing resistors for voltage sh
12、aring . 12 12.3 Component failure . 15 12.4 Back-to-back connection . 15 13 Clearance and creepage distances 16 13.1 Distances inside the capacitor . 16 13.2 Distances outside the capacitor . 16 14 Capacitor mounting .16 14.1 General conditions for mounting 16 14.2 Component preparation . 17 14.3 Mo
13、unting 17 14.4 Soldering 18 14.5 Transport and handling of assembled devices 18 15 Cleaning solvents 19 15.1 General 19 15.2 Cleaning solvents and process parameters 19 16 Potting and gluing .20 16.1 Potting and gluing materials 20 16.2 Curing process . 20 CLC/TR 50454:2008 3 17 Aluminium electrolyt
14、ic motor start capacitors 20 17.1 Connection . 20 17.2 Mains voltage and surge 20 17.3 Duty cycle . 21 17.4 Discharge resistor 21 17.5 Operating temperature and vibration . 21 17.6 Insulation (capacitor energised) 22 17.7 Failure mechanism 22 18 Disposal of capacitors 22 Figures Figure 1 - Individua
15、l balancing resistors . 11 Figure 2 - Common centre connection . 12 Figure 3 - Group-balancing resistors 12 Figure 4 - Voltage sharing analysis 13 Figure 5 - Back-to-back connection 15 Figure 6 - Typical motor start arrangement 20 Table Table 1 - Balancing examples 15 CLC/TR 50454:2008 4 1 Scope and
16、 object 1.1 Scope This Technical Report applies to components as described in the scope of the following standards: EN 60384-4 Fixed capacitors for use in electronic equipment - Part 4: Sectional specification - Aluminium electrolytic capacitors with solid (MnO2) and non-solid electrolyte EN 137100
17、Sectional Specification: Fixed aluminium electrolytic a.c. capacitors with non-solid electrolyte for motor starter applications - Qualification approval The information given in these documents apply to capacitors with non-solid electrolyte but may, in its appropriate clauses, apply to capacitors wi
18、th solid electrolyte as well. In cases of doubt, the application of this document shall be discussed between the user and the manufacturer of the components. 1.2 Object Electrolytic capacitors in general and aluminium electrolytic capacitors in particular are an exception in the capacitor field beca
19、use of the components close interaction of physics and chemistry. Therefore, aluminium electrolytic capacitors show, in various aspects, a technical behaviour unaccustomed to the user. That could easily lead to misapplications and even to endangering of persons and goods. The aim of this application
20、 guide is to minimize these risks by providing detailed information on the specific peculiarities of the component. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated refe
21、rences, the latest edition of the referenced document (including any amendments) applies. EN 60384-1:2001 Fixed capacitors for use in electronic equipment - Part 1: Generic specification (IEC 60384-1:1999, mod.) EN 60384-4:2007 Fixed capacitors for use in electronic equipment - Part 4: Sectional spe
22、cification - Aluminium electrolytic capacitors with solid (MnO2) and non-solid electrolyte (IEC 60384-4:2007) EN 137000:1995 Generic Specification: Fixed aluminium electrolytic a.c. capacitors with non-solid electrolyte for use with motors EN 137100:1995 Sectional Specification: Fixed aluminium elec
23、trolytic a.c. capacitors with non-solid electrolyte for motor starter applications - Qualification approval CLC/TR 50454:2008 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 positive electrode (anode) aluminium (preferably aluminium foil) o
24、f extreme purity which is etched in most cases in order to increase the electrodes surface and, consequently, the capacitors capacitance yield 3.2 negative electrode (cathode) working electrolyte which is a conductive liquid in the case of capacitors with non-solid electrolyte or a layer of manganes
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